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rr A d @eine tatraatmt @Hita ALFRED THQMAS, 0F' WORCESTER', MASSACHUSETTS. l' Letters Patent No. 70,488, dated Novemer 5, 1867.

IMPROVEMENT LATHE-WAY SMOOTHERS.

KNOW ALL MEN BY THESE PRESENTS:

.That I, ALFRED THOMAS, of the city and county of Worcester, and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lathe-Way Smoothers; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specicatiomin whichi lFigure 1 represents so much of a planing machine, with my improvements applied thereto, as is necessary to illustrate my invention, and

Figure 2 represents avertical section through the beds and thev arms whicb'support the shaft of the smoothing-wheel.

j To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail. i y Y l In the drawings, A represents the stationary bed `of' an ordinary planing machine, and B Ithe movable bed, which works on the ways a a, and may be moved back and forth in the ordinary manner. C is the frame, which supports the planing-tool, and which also serves to support the lathe-way smoothing apparatus. D is a bed of a lathe arranged upon the movable bed or table B, and 'fastened thereto by cross-pieces b and bolts c. The ways d d of thebcd D have heretofore been finished byfa hand-file, an operation both tedious and expensive, but which operation can be performed by my improved mechanism in a very uniform and expeditious manner. To the slide-piece E is fastened the frame F, in the arms G G of which is supported in suitable bearings a shaft, H, having a pulley, I, upon its centre, while its ends extend on either side suilicieutly far to support the smoothing and reducing-wheel J. The slide-piece E is dove-tailed to the piece K, which, in turn, is dove-tailed to the cross-piece or bar L. The pieceK can be moved upon the cross-br L to adjust the smoothing and reducingwheel J to any desired position, and a screw-shaft may be employed for such purpose, the same as in the comr mon planing machine. Frame F is fastened to the piece E by means of the screws or bolts ef, the latter passing through the curved groove g in the frame F. By loosening the screws or belts ef, frame F can be tipped laterorally to adjust the wheelJ to work upon any desired angle. o

The operation is as follows.: The lathe-bed D is fastened upon the movable table or bed B, a nd the smoothing or reducing-wheel J is properly adjusted, and a rapid motion is then imparted to it by means of a belt running upon the pulley I. Bed or tablcB is now run so as to carry the lathe-bed D under and in an opposite direc' tion to the motion of wheel J, whereby the lattcrreducwes and smooths one of the ways ,after which the wheel J- i is changed to the other end of shaft I-I and frame F adjusted to bring the wheel in the proper position to smooth the other way d. By means of screw h, frame F can be raised or lowered to elevate or lower'wheel J, as lnay be desired. By this adjustment wheclJmaybe set to reduce the way slightly at first, and then lowered to finish the way, while the bed is run under the wheel the second time. Wheel J may be covered with cmcry or any v other suitable material. kHaving described my improvements in mechanism for smoothing lathe-ways, what I claim as new and ofniy' invention, and desire to secure by Letters Patent, i s 1 f r 1. The combination with the frame C, cross-bar L, piece K, and slide-piece E, of frame @shaft H, and

smoothing-wheel J, substantially as and, for the pu-rposes set forth. I

2. The combination'of the smoothing-wheel J, Vshait H, and pulley I with the slide-piece E, substantially as and for the purposes set forth. l

ALFRED THOMAS.

Witnesses:

THOMAS H.l DODGE, D. L. Munita. 

